Thanks for the Korg link.  I decided to download the latest configuration utility and found my Korg Kontrol Editor no longer worked, despite the fact that the nanoKontrol itself still worked (per MIDI-OX).  After getting midi port failure messages and an inability to receive/send [communicate], I finally found how to correct the problem. Just a guess, but I think the The 2020 Korg driver uses a different device name than my previous driver.  My solution was to change the device marked "(Not Conn